Twister ring and traveler



Feb. 25, 1930. G, H, G|| |GAN 1,748,710

TWISTER RING AND TRAVELER Filed Aug. 17, 1929 Patented vFeb'. 25, 1930 n UNITED STATES PATENT OFFICE GEoRGE H.; GILLIGAN, E PROVIDENCE, RHODE ISLAND, AssIGNoR 'ro U. s. RING TRAVELER COMPANY, 0E PROVIDENCE, RHODE ISLAND, YA CORPORATIONv 0E RHODE ISLAND TWISTER RING- AND' TRAVELER Appiiqation'lea August 17,1929. Yserial No. 386,708.

Myinvention relates to twister rings of the vertical type and'to travelers adapted to cooperate therewith.. z

l tion consists in the Vmeans for accomplishing rIhe essential objects of my invention are` 4to reduce the friction of the4 traveler upon the` ring; to prevent lateral cramping of the traveler in its course; and to afford a free delivery ofthe lubricant from the ring to the traveler. Y f Y.

To the above endsI essentially my inventhe above objects. f

In the accompanying drawings which form a part of this'specification j parts throughout the views. e.

Figure 1 is-a perspective view of my and my traveler mounted thereon,l Figure 2, a diametrical section ofthe ring showingthe traveler in side elevation engaging a threadfand I i Figurev 3, a fragmentary section ofa ring carrying amodified vfoi/"In of traveler.

Like reference Vcharacters indicate 'e 'like ring i In the drawings '1I represents a twister ring comprising a vertical annular body 5` having Vannular transversely rounded upper and lower bearing' edges 6 and 1k7, and'provided -with a transversely arcuate concave annular inner face S'extending completely from one bearing edge to the other. p. f l

j Slidablyinounted upon the 'ring is a ring traveler 9 of the vertical type formed from a flat oblong metal strip comprising a straight4 flat vertical shank '10, slightly longer-than the height ofthe ring, withiits lower and upper outer end `portions in running contact with the bearingedges 6 and 7 of the ring; an

points,V whereby the dangers of excessive heat i and speedy wear of the traveler is lessened. The lateral tilting ofthe traveler is absent because the foot 12 of the latter isl pivoted upon the lower bearing edge of the ring ratherA f and uniinpeded delivery of the lubricant from theface tothe lower annular bearing 7v where a maximum of friction occurs. Y l

In cases' where a thread of unusually great diameter is employed the Aform of traveler shown in` Figure 3 is preferable. This differs from the form shown in the other ligures merely in that an inwardly directed horizontal loop 18 upon the upper end of the shank 10 forms the lower portion of the y*upper horn, and the outer extremity of the latter 19 is elongated.

I claim: Y 'A twister ring comprising a vertical annularr body having bearing portions at the topv and bottom thereof, the inner face of said body vextending in an arccontinuously between the top and bottom edges of said ring and beingv transversely yconcaved and unobstructed.

Y In testimony whereof I have affixed my signature. f l 1 GEORGE H.,GILLIGAN.

upwardly vand outwardly directed arcuate horn or foot 12 upon its lower'end also en-p Y gaging the lower bearing edge 7 upon which it may pivot outwardly and inwardly; andV Y an outwardly and downwardly directed horn 14 integral with theupperextremity of the shank.

In' operation the thread 16 extending from Athe Vdelivery rolls to ther bobbin propels the traveler annularly upon tlierin'g.r The traveler, because of the. peculiar ring construcl tion, has during its annular travel a minimum frictonal contact therewith, and atonly two which pivotal relation of possible by the conlea 

